Glow Plug

Glow Plug

Glow plugs are used in diesel engines to heat the combustion chambers, making it easier for the engine to start in cold weather. Each cylinder has its own glow plug. If one fails, the engine might take longer to start or run rough until warmed up. In very cold climates, bad glow plugs can prevent starting altogether. Replacing them restores reliable cold starts and smooth running.

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